Properties

Label 720.3.j.h
Level $720$
Weight $3$
Character orbit 720.j
Analytic conductor $19.619$
Analytic rank $0$
Dimension $8$
Inner twists $8$

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Show commands: Magma / PariGP / SageMath

Newspace parameters

comment: Compute space of new eigenforms
 
[N,k,chi] = [720,3,Mod(559,720)]
 
mf = mfinit([N,k,chi],0)
 
lf = mfeigenbasis(mf)
 
from sage.modular.dirichlet import DirichletCharacter
 
H = DirichletGroup(720, base_ring=CyclotomicField(2))
 
chi = DirichletCharacter(H, H._module([1, 0, 0, 1]))
 
N = Newforms(chi, 3, names="a")
 
//Please install CHIMP (https://github.com/edgarcosta/CHIMP) if you want to run this code
 
chi := DirichletCharacter("720.559");
 
S:= CuspForms(chi, 3);
 
N := Newforms(S);
 
Level: \( N \) \(=\) \( 720 = 2^{4} \cdot 3^{2} \cdot 5 \)
Weight: \( k \) \(=\) \( 3 \)
Character orbit: \([\chi]\) \(=\) 720.j (of order \(2\), degree \(1\), minimal)

Newform invariants

comment: select newform
 
sage: f = N[0] # Warning: the index may be different
 
gp: f = lf[1] \\ Warning: the index may be different
 
Self dual: no
Analytic conductor: \(19.6185790339\)
Analytic rank: \(0\)
Dimension: \(8\)
Coefficient field: 8.0.207360000.1
comment: defining polynomial
 
gp: f.mod \\ as an extension of the character field
 
Defining polynomial: \( x^{8} + 6x^{6} + 32x^{4} + 24x^{2} + 16 \) Copy content Toggle raw display
Coefficient ring: \(\Z[a_1, \ldots, a_{13}]\)
Coefficient ring index: \( 2^{16}\cdot 3^{2} \)
Twist minimal: yes
Sato-Tate group: $\mathrm{SU}(2)[C_{2}]$

$q$-expansion

comment: q-expansion
 
sage: f.q_expansion() # note that sage often uses an isomorphic number field
 
gp: mfcoefs(f, 20)
 

Coefficients of the \(q\)-expansion are expressed in terms of a basis \(1,\beta_1,\ldots,\beta_{7}\) for the coefficient ring described below. We also show the integral \(q\)-expansion of the trace form.

\(f(q)\) \(=\) \( q + \beta_{5} q^{5} + \beta_{7} q^{7}+O(q^{10}) \) Copy content Toggle raw display \( q + \beta_{5} q^{5} + \beta_{7} q^{7} + \beta_{4} q^{11} + \beta_1 q^{13} + (\beta_{5} - \beta_{3}) q^{17} - \beta_{2} q^{19} + \beta_{6} q^{23} + (5 \beta_1 - 5) q^{25} + ( - 7 \beta_{5} - 7 \beta_{3}) q^{29} + \beta_{2} q^{31} + (\beta_{6} + 3 \beta_{4}) q^{35} - 13 \beta_1 q^{37} + ( - 2 \beta_{5} - 2 \beta_{3}) q^{41} - 4 \beta_{7} q^{43} + 3 \beta_{6} q^{47} + 23 q^{49} + (9 \beta_{5} - 9 \beta_{3}) q^{53} + ( - 5 \beta_{7} + 5 \beta_{2}) q^{55} + 7 \beta_{4} q^{59} - 26 q^{61} + ( - \beta_{5} - 5 \beta_{3}) q^{65} + 6 \beta_{7} q^{67} + 10 \beta_{4} q^{71} + 8 \beta_1 q^{73} + (12 \beta_{5} - 12 \beta_{3}) q^{77} - 15 \beta_{2} q^{79} + 4 \beta_{6} q^{83} + (5 \beta_1 - 30) q^{85} + (8 \beta_{5} + 8 \beta_{3}) q^{89} + 6 \beta_{2} q^{91} + (\beta_{6} - 2 \beta_{4}) q^{95} + 6 \beta_1 q^{97}+O(q^{100}) \) Copy content Toggle raw display
\(\operatorname{Tr}(f)(q)\) \(=\) \( 8 q+O(q^{10}) \) Copy content Toggle raw display \( 8 q - 40 q^{25} + 184 q^{49} - 208 q^{61} - 240 q^{85}+O(q^{100}) \) Copy content Toggle raw display

Basis of coefficient ring in terms of a root \(\nu\) of \( x^{8} + 6x^{6} + 32x^{4} + 24x^{2} + 16 \) : Copy content Toggle raw display

\(\beta_{1}\)\(=\) \( ( \nu^{7} + 8\nu^{5} + 40\nu^{3} + 56\nu ) / 8 \) Copy content Toggle raw display
\(\beta_{2}\)\(=\) \( ( -3\nu^{6} - 16\nu^{4} - 96\nu^{2} - 40 ) / 8 \) Copy content Toggle raw display
\(\beta_{3}\)\(=\) \( ( 3\nu^{7} + 4\nu^{6} + 16\nu^{5} + 24\nu^{4} + 88\nu^{3} + 112\nu^{2} + 8\nu + 48 ) / 16 \) Copy content Toggle raw display
\(\beta_{4}\)\(=\) \( ( 5\nu^{7} + 32\nu^{5} + 176\nu^{3} + 248\nu ) / 16 \) Copy content Toggle raw display
\(\beta_{5}\)\(=\) \( ( 3\nu^{7} - 4\nu^{6} + 16\nu^{5} - 24\nu^{4} + 88\nu^{3} - 112\nu^{2} + 8\nu - 48 ) / 16 \) Copy content Toggle raw display
\(\beta_{6}\)\(=\) \( ( -3\nu^{6} + 216 ) / 8 \) Copy content Toggle raw display
\(\beta_{7}\)\(=\) \( ( 9\nu^{7} + 48\nu^{5} + 240\nu^{3} + 24\nu ) / 16 \) Copy content Toggle raw display
\(\nu\)\(=\) \( ( \beta_{7} - 3\beta_{5} + 3\beta_{4} - 3\beta_{3} - 3\beta_1 ) / 24 \) Copy content Toggle raw display
\(\nu^{2}\)\(=\) \( ( \beta_{6} + 6\beta_{5} - 6\beta_{3} - 9\beta_{2} - 36 ) / 24 \) Copy content Toggle raw display
\(\nu^{3}\)\(=\) \( ( -2\beta_{7} + 3\beta_{5} + 3\beta_{3} ) / 3 \) Copy content Toggle raw display
\(\nu^{4}\)\(=\) \( ( \beta_{6} - 6\beta_{5} + 6\beta_{3} + 7\beta_{2} - 28 ) / 4 \) Copy content Toggle raw display
\(\nu^{5}\)\(=\) \( ( 11\beta_{7} - 15\beta_{5} - 15\beta_{4} - 15\beta_{3} + 33\beta_1 ) / 6 \) Copy content Toggle raw display
\(\nu^{6}\)\(=\) \( ( -8\beta_{6} + 216 ) / 3 \) Copy content Toggle raw display
\(\nu^{7}\)\(=\) \( ( 29\beta_{7} - 39\beta_{5} + 39\beta_{4} - 39\beta_{3} - 87\beta_1 ) / 3 \) Copy content Toggle raw display

Character values

We give the values of \(\chi\) on generators for \(\left(\mathbb{Z}/720\mathbb{Z}\right)^\times\).

\(n\) \(181\) \(271\) \(577\) \(641\)
\(\chi(n)\) \(1\) \(-1\) \(-1\) \(1\)

Embeddings

For each embedding \(\iota_m\) of the coefficient field, the values \(\iota_m(a_n)\) are shown below.

For more information on an embedded modular form you can click on its label.

comment: embeddings in the coefficient field
 
gp: mfembed(f)
 
Label   \(\iota_m(\nu)\) \( a_{2} \) \( a_{3} \) \( a_{4} \) \( a_{5} \) \( a_{6} \) \( a_{7} \) \( a_{8} \) \( a_{9} \) \( a_{10} \)
559.1
0.437016 + 0.756934i
1.14412 1.98168i
0.437016 0.756934i
1.14412 + 1.98168i
−1.14412 + 1.98168i
−0.437016 0.756934i
−1.14412 1.98168i
−0.437016 + 0.756934i
0 0 0 −3.16228 3.87298i 0 −8.48528 0 0 0
559.2 0 0 0 −3.16228 3.87298i 0 8.48528 0 0 0
559.3 0 0 0 −3.16228 + 3.87298i 0 −8.48528 0 0 0
559.4 0 0 0 −3.16228 + 3.87298i 0 8.48528 0 0 0
559.5 0 0 0 3.16228 3.87298i 0 −8.48528 0 0 0
559.6 0 0 0 3.16228 3.87298i 0 8.48528 0 0 0
559.7 0 0 0 3.16228 + 3.87298i 0 −8.48528 0 0 0
559.8 0 0 0 3.16228 + 3.87298i 0 8.48528 0 0 0
\(n\): e.g. 2-40 or 990-1000
Embeddings: e.g. 1-3 or 559.8
Significant digits:
Format:

Inner twists

Char Parity Ord Mult Type
1.a even 1 1 trivial
3.b odd 2 1 inner
4.b odd 2 1 inner
5.b even 2 1 inner
12.b even 2 1 inner
15.d odd 2 1 inner
20.d odd 2 1 inner
60.h even 2 1 inner

Twists

       By twisting character orbit
Char Parity Ord Mult Type Twist Min Dim
1.a even 1 1 trivial 720.3.j.h 8
3.b odd 2 1 inner 720.3.j.h 8
4.b odd 2 1 inner 720.3.j.h 8
5.b even 2 1 inner 720.3.j.h 8
5.c odd 4 2 3600.3.e.bj 8
12.b even 2 1 inner 720.3.j.h 8
15.d odd 2 1 inner 720.3.j.h 8
15.e even 4 2 3600.3.e.bj 8
20.d odd 2 1 inner 720.3.j.h 8
20.e even 4 2 3600.3.e.bj 8
60.h even 2 1 inner 720.3.j.h 8
60.l odd 4 2 3600.3.e.bj 8
    
        By twisted newform orbit
Twist Min Dim Char Parity Ord Mult Type
720.3.j.h 8 1.a even 1 1 trivial
720.3.j.h 8 3.b odd 2 1 inner
720.3.j.h 8 4.b odd 2 1 inner
720.3.j.h 8 5.b even 2 1 inner
720.3.j.h 8 12.b even 2 1 inner
720.3.j.h 8 15.d odd 2 1 inner
720.3.j.h 8 20.d odd 2 1 inner
720.3.j.h 8 60.h even 2 1 inner
3600.3.e.bj 8 5.c odd 4 2
3600.3.e.bj 8 15.e even 4 2
3600.3.e.bj 8 20.e even 4 2
3600.3.e.bj 8 60.l odd 4 2

Hecke kernels

This newform subspace can be constructed as the intersection of the kernels of the following linear operators acting on \(S_{3}^{\mathrm{new}}(720, [\chi])\):

\( T_{7}^{2} - 72 \) Copy content Toggle raw display
\( T_{11}^{2} + 120 \) Copy content Toggle raw display
\( T_{29}^{2} - 1960 \) Copy content Toggle raw display

Hecke characteristic polynomials

$p$ $F_p(T)$
$2$ \( T^{8} \) Copy content Toggle raw display
$3$ \( T^{8} \) Copy content Toggle raw display
$5$ \( (T^{4} + 10 T^{2} + 625)^{2} \) Copy content Toggle raw display
$7$ \( (T^{2} - 72)^{4} \) Copy content Toggle raw display
$11$ \( (T^{2} + 120)^{4} \) Copy content Toggle raw display
$13$ \( (T^{2} + 24)^{4} \) Copy content Toggle raw display
$17$ \( (T^{2} + 60)^{4} \) Copy content Toggle raw display
$19$ \( (T^{2} + 48)^{4} \) Copy content Toggle raw display
$23$ \( (T^{2} - 720)^{4} \) Copy content Toggle raw display
$29$ \( (T^{2} - 1960)^{4} \) Copy content Toggle raw display
$31$ \( (T^{2} + 48)^{4} \) Copy content Toggle raw display
$37$ \( (T^{2} + 4056)^{4} \) Copy content Toggle raw display
$41$ \( (T^{2} - 160)^{4} \) Copy content Toggle raw display
$43$ \( (T^{2} - 1152)^{4} \) Copy content Toggle raw display
$47$ \( (T^{2} - 6480)^{4} \) Copy content Toggle raw display
$53$ \( (T^{2} + 4860)^{4} \) Copy content Toggle raw display
$59$ \( (T^{2} + 5880)^{4} \) Copy content Toggle raw display
$61$ \( (T + 26)^{8} \) Copy content Toggle raw display
$67$ \( (T^{2} - 2592)^{4} \) Copy content Toggle raw display
$71$ \( (T^{2} + 12000)^{4} \) Copy content Toggle raw display
$73$ \( (T^{2} + 1536)^{4} \) Copy content Toggle raw display
$79$ \( (T^{2} + 10800)^{4} \) Copy content Toggle raw display
$83$ \( (T^{2} - 11520)^{4} \) Copy content Toggle raw display
$89$ \( (T^{2} - 2560)^{4} \) Copy content Toggle raw display
$97$ \( (T^{2} + 864)^{4} \) Copy content Toggle raw display
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